Lt. Gov. Glenn McConnell, a member of the South Carolina Hunley Commission, 

Lt. Gov. Glenn McConnell, a member of the South Carolina Hunley Commission, left, listens as conservator Paul Mardikian explains  how a spar was attached to the front of the Confederate submarine H.L. Hunley during a news conference in North Charleston, S.C., on Monday Jan. 28, 2013. Scientists have found remnants of a torpedo casing on the spar, indicating the sub was no more than 20 feet from the Union blockade ship Housatonic when the Hunley sank it off South Carolina in 1864, becoming the first sub in history to sink an enemy warship.   (AP Photo/Bruce Smith)
Associated Press
Lt. Gov. Glenn McConnell, a member of the South Carolina Hunley Commission, left, listens as conservator Paul Mardikian explains how a spar was attached to the front of the Confederate submarine H.L. Hunley during a news conference in North Charleston, S.C., on Monday Jan. 28, 2013. Scientists have found remnants of a torpedo casing on the spar, indicating the sub was no more than 20 feet from the Union blockade ship Housatonic when the Hunley sank it off South Carolina in 1864, becoming the first sub in history to sink an enemy warship. (AP Photo/Bruce Smith)
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